A configuration group is a collection of key/value pairs which configure a
database instance. Some directives are capable of being applied dynamically,
while other directives require a server restart to take effect. The
configuration group can be applied to an instance at creation or applied to
an existing instance to modify the behavior of the running datastore on the
instance.

flavor

A flavor is an available hardware configuration for a database instance.
Each flavor has a unique combination of memory capacity and priority for
CPU time.

instance

A database instance is an isolated MySQL instance in a single tenant
environment on a shared physical host machine. Also referred to as
instance.

database

A database is a local MySQL database running on an instance.

user

A user is a local MySQL user that can access a database running on an
instance.

datastore

The database engine running on your instance. Currently, there is support
for MySQL 5.6, MySQL 5.1, Percona 5.6 and MariaDB 10.

volume

A volume is user-specified storage that contains the database engine data
directory. Volumes are automatically provisioned on shared Internet Small
Computer System Interface (iSCSI) storage area networks (SAN) that provide
for increased performance, scalability, availability and manageability.
Applications with high I/O demands are performance optimized and data is
protected through both local and network RAID-10.